SKU: 42323650219

Hillman 5/16 in Stainless Steel SAE Acorn Nut, 50-Pack

Sale price$94.49 Regular price$104.99
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Description

Hillman 5/16 in Stainless Steel SAE Acorn Nut, 50-Pack5 16 in Stainless Steel Acorn Nuts (50 Pack) Durable stainless steel acorn cap nuts in SAE sizing deliver corrosion resistant performance for clean, finished fastenings. The domed cap protects exposed threads and provides a polished look, ideal for projects requiring frequent adjustments. Key Features: Corrosion Resistance: Stainless steel construction resists rust for long lasting outdoor and indoor use Protective Dome: Cap nut covers exposed threads

5/16 in Stainless Steel Acorn Nuts (50-Pack)

Durable stainless steel acorn cap nuts in SAE sizing deliver corrosion-resistant performance for clean, finished fastenings. The domed cap protects exposed threads and provides a polished look, ideal for projects requiring frequent adjustments.


Key Features:

  • Corrosion Resistance: Stainless steel construction resists rust for long-lasting outdoor and indoor use
  • Protective Dome: Cap nut covers exposed threads to prevent damage and injury while offering a clean finish
  • SAE Sizing: 5/16-18 coarse thread for compatibility with standard SAE bolts
  • Convenient Bulk Pack: 50-piece boxed set supports larger projects and maintenance
  • Easy Handling: Hex shape enables simple installation with common wrenches

Specifications Table:

Specification Details
Brand Name Hillman
Callout Size 5/16 inch
Material Stainless Steel
Number in Package 50 pack
Packaging Type Boxed
Thread Type Coarse
Unit of Measurement SAE
Thread Size 5/16-18
Package Dimensions 3 in W x 3 in L x 2 in H
Package Weight 3.3 lbs

Frequently Asked Questions (FAQ):

Q: What thread size do these acorn nuts fit?
A: They are 5/16-18 coarse thread, compatible with SAE bolts of the same size.


Q: Are they suitable for outdoor applications?
A: Yes, the stainless steel finish offers strong corrosion resistance for outdoor and marine-adjacent use.


Q: How are acorn nuts different from standard hex nuts?
A: Acorn nuts have a domed cap that covers and protects exposed threads and provides a finished appearance.


Q: What tools are needed for installation?
A: Use a standard wrench or socket sized for 5/16 hex nuts; tighten to the required torque for your application.


Q: How many nuts are in the package?
A: 50 pieces, boxed.


A Polished Finish with Protective Precision

The stainless steel acorn nut adds a refined, architectural touch to hardware details, turning functional fasteners into sleek accents. Its domed silhouette neatly conceals threads, elevating cabinetry, fixtures, and exposed mechanical joints. Style it as the finishing note on custom shelving or industrial-inspired furniture for a cohesive, tailored look. This essential detail delivers durability and luxury in one decisive stroke.


Finish your project with corrosion-resistant, polished acorn nuts—add this 50-pack to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42323650219

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Jose Perez
West Palm Beach, US
★★★★★ 5
they give what they offer
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
great service from seller it was exactly how much oil quantity i ordered and its great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
D
Verified Purchase
Dustin
Bozeman, US
★★★★★ 5
Works if you need help. Not a miracle in a bottle.
Size: 1 Count (Pack of 1)
It has worked every time I've used this product. Won't fix a damage catalytic converter but will help you pass the test if your car almost passed.
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
Leslie Price
Birmingham, US
★★★★★ 5
Worked like a charm.
Size: 1 Count (Pack of 1)
Used it as directed. Down to an eighth of a tank. Poured it in and added enough gas to get back to one half a tank. Wanted to get it mixed in really well. Immediately jumped on the interstate and ran 75 MPH for 40 miles. Stopped and filled the tank and when I restarted the engine, the light was off. Coincidence? Not a chance. Light had been on continuously for weeks. AutoZone said I needed a catalytic converter. Nope. One thing I found out the hard way. If your gas filler has a flap at the top, make sure it is easy to push aside. Mine had a little release button near the top that the filler hose would depress before the flap would release. Dumped the first bottle right on the ground. Twelve bucks wasted. No one to blame but me, I guess. Still a bargain, even at twice the price.
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Reviewed in the United States on February 17, 2026
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Brenda A DeRouen
Draper, US
★★★★★ 1
Before use on March 15 two days later March 17 engine light still on
Size: 1 Count (Pack of 1), Size: 1 Count (Pack of 1)
I read the specs on this product and it was guaranteed to cleanse as well as turn engine light off in vehicle. I received it March 14.2026 and used it on March 15.2026 I took a picture on Sunday before I entered it into the gas tank engine light was on at that time. Today is March 17.2026 and engine light is still on. The truck was driven for one hour on the 15th 45 minutes on the 16th and 50 minutes on 17 March. Still the engine light is on. Got home parked the vehicle took a picture again to show engine light is still on product guaranteed it was shut it off, but unfortunately product does not work.
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Reviewed in the United States on March 17, 2026
A
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Amazon Customer
Alexandria, US
★★★★★ 4
Good stuff
Size: 1 Count (Pack of 1)
I've used and it's worked for emissions for me and that's with having check engine light on..use stuff,drive around a bit,clear code drive to emissions and should b good unless got serious problems. It's good to use 1 or 2 times a yr if high mileage vehicle.
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Reviewed in the United States on January 1, 2025

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